Methodology for estimating the critical resolved shear stress ratios of alpha-phase Ti us

A Journal of Postdoctoral Research.

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ISSN : 2328-9791

Methodology for estimating the critical resolved shear stress ratios of alpha-phase Ti us

Yiyi Yang

Brown University

School of Engineering, Brown University, Providence, RI 02912, United States.

yiyi_yang@brown.edu

In a recent paper published by a group from Michigan State University (H. Li, et al. http://dx.doi.org/10.1016/j.actamat.2013.08.042), the authors proposed a novel method to calculate the critical resolved shear stress (CRSS) ratio of different deformation systems in titanium and its alloys, and examined its reliability using the statistical resampling technique of bootstrapping. The results indicate that the activity of these deformation systems varies as a function of alloying composition and deformation temperature. This intrinsic change of CRSS ratios in these alloys is especially important to increasing the accuracy of the crystal plasticity simulations.